Track belt



Sept. 9 1924.

M. B. MORGAN TRACK BELT 2 'Sheets-Sheet 1 ATTORNEY Sept. 9 1924. 1,507,751

M. B. MORGAN mvENToR ATTORNEY plane indicated by plane of line -top and bottom Patent-.1 seppe, 1924.

-UNITED As'mras PATENT Omen.

nTHnw 1a. uonoAN. or CLEVELAND HnreHTs,V OHIO, AssmNon To THE CLEVELAND moron COMPANY, or HUOLID, OHIO, A CORPORATION or OHIO.

TRACK BELT.

To all wlwm'i may concern.'

Be it known that I, MATHEW B. MORGAN, a citizen of the United States, residing at Cleveland Heights, in the county of Cuya' hoga and State of Ohio, have invented a certain new and useful Improvement in Track -The invention consists'l in the construction and combination of parts 'shown in the drawing and hereinafter described and pointed out denitely in the appended claims.

In the drawing,'Fig. 1 is a plan view of 'a short section O the track belt comprising three pivoted together links, the top plates of twoof said links being partially broken away and the parts below said top plates being shown in horizontal section through the axis of the joint between the two links. Fig. 2 is a sectional side elevation'in the line 2-2 on Fig. l; Fig. 3 is an end view of the construction of the track membersemployed Onlinks of the A- @reime-Hangar. away and sectioned; F1 5 a side elevation looking into the open en of said track member, and Fig. 6 being a. vertical section in the 6- 6 on Fig. 4. Figs. 7, 8 and 9 show the construction of the track members employed on links of the B-type; Fig. 7 being a. jilan view ly broken away an sectioned, i 8 a si e elevation looking into the Open en of said member, and Fig. 9 a transverse vertical section/in the plane of line9-9onFig.7.

A 'track belt constructed according-to this invention is made ,up of alternately placed links A and B which have many features in common, but which also differ in certain re- `as will be hereinafter pointed out. ach

link includes in itsconstruction two track members, which are arranged side by side and are connected together, each oi said track members having parallel' horizontal portions, of which the former serve as arts Of the track or rail for wheels or ro ers mounted on the tractor. Each link as shown, also includes a bottom plate or shoe 10, to which the track memone of the A-type links Figs. 4, 5 and 6 ShOW an view partly broken Application mea my 22, 1920. serm No. 39am.

bers are secured by bolts 12 or other -suitable l means.- This shoe adds to the practical value of the construction; but if it were omitted the respective links could be operatively connected b the means shown, and the resultingtrac belt would be operative for some purposes.

The .track links A are indicatedby 20, and those which form parts `of links B are indicated by 20, and the two track members 20 employed on an A link may be exactly alike; andso may the two track members 20EL of each B link.

The track members employed in the con-- struction of both types of links are drawn down from a flat sheet metal blank into the form or" a cup whose depth is substantially equal to one half the width of the shoe. Each of these cup-shaped members has a closed end 2l and two substantially parallel straight sides 22, 23, which become respectively kthe top and bottom of the track member when it is secured upon the shoe.

These top and bottom members 22, 23, which are parts O both the A and B links are connected at both ends by two integral straps, the combined widthv of which equals the width of the track member from the closed to the open end thereof.

The differences between the two links A and B are produced by the differences in the construction and arrangement of these strap members which vform parts of.

members with respect to the closed and Open d and the straps 24 on the track members -20 are bent outwardly, i. e., away from each other into U-shape; but the two straps 25 On the track members 20 as well as the two straps`25a on track members 2O*L are reversely curved, that is, they are bent toward each other. The width of the U-shaped straps 24 on each track member 2O is the same as that of the reversely curved straps 2 5* on each track member 20. Likewise the width of the U-shaped straps 24 on track members 20EL is the same as the width of the reversely curved straps 25 on the track members 20. On the track members 20 associated with the A links, the U-shaped straps 24 are adjacent the open sides of the members and the reversely curved straps 25 are adjacent the closed sides of said members. But on the track members 20 associated with the in contact along the longitudinal central line of the shoe. To produce one of the B links two track members 2()a `are secured to the shoe with their closed ends in contact along the longitudinal 'central line of said shoe.

To connect an A and a B link together in the process of producing a track Cbelt, the

U-shaped straps 24a on the B link are inserted between the two U-shaped straps 24 which are parts of the A link. The outer surface of the straps 24a fit against the outer surfaces of the reversely bent straps 25 on link. A; and likewise the outer surfaces of the straps 24 engage with and lit the reversely curved straps 25a on the B link. When the parts are in this position the pintle pin is passed through the eye formed by the U-shaped straps 24 located near the edges of the A links and the U-shaped straps 24 forming parts of the Blink and located at the center thereof. These pintle pins also pass through and fit in holes 29 which are formed inthe closed ends of the cup-shaped track members 20.

The middle parts of the top members 23 of the pivoted together links are in the same plane and serve as tracks to su port the track wheels of the tractor, which o course are not shown in the drawing. This central track surface on all of the links is depressed slightly below those parts of the top members 21 which areadjacent the sides of the link.

The track belt as shown is especially intended for u se in connection with double sprocket wheeels, that is to say, sprocket wheels each havingtwo se arated sprocket teeth carrying disks. In or er that the teeth of these sprockets may enga e 'the pins and thereby drive an endless tra belt made of the described links slots 30 are formed through the tops of the track members, and

are continued into the strap loops as far` as necessary, substantially as shown.

Having described my invention I claim;

1. A track belt unit comprising two similar cup-shaped members having horizontal top and bottom portions placed side by side and secured together, the adjacent inner portions of said horizontal top portions'being in alower horizontal tions thereof formm a longitudinal roller -guideway centrally o said unit.

2. A track belt'unit comprising twovsimilar cup-shaped members having horizontal top and bottom portions placed side by side and closed ends secured together, said horizontal top portions being formed to abut ongitudinal roller plane than the outer porgral bearing surface centrall l of said unit, and a shoe on which said mem ers are secured.

3. A track belt unit comprising two cupshaped members which are closed at one side and o en at the other side ,and have substantial y`horizontal vto and bottom portions, said `two members eing secured together with their closed ends in c ontact, and a shoe to which said members are secured.

4. A track belt unit comprising two similar track units placed side by side, in contact, and secured together to form one part of a link structure, each of said track members having a top and bottom ortion the said to and bottom portions at oth ends of the lin being connected by portions which have outwardly bent U-shaped surfaces and by portions which have reversely curved surfaces.

5. A track belt unit comprising two similar track units placed side by side, in contact, and secured together to form one part of a link structure, each of said track membersA having a top and bottom portion, the said V top and bottom portions at both ends of the link being connected by portions which have outwardly bent U-shaped surfaces and by ortions which have reversely curved suraces, and a pintle pin assing through the eye formed b the over apping ends of the U-sha ed sur aces on adjacent members. l 6. track belt comprisin a plurality of pivoted together links, eac comprising a shoe, and two at cu -shaped track members which are secure upon said shoe with their closed ends in substantial contact along the lontgitudinal central line of said shoe, v

which connect said top and bottom portions and are integral parts of them.

7. A track belt comprisin a plurality of pivoted together links, eac comprlsin a shoe, and two vflat cup-shaped track mem rs which are secured u n said shoe with their closed ends in suligtantial contact along the longitudinal central lineA of said shoe, each of said track members having substantially parallel and horizontal to and bottom portions, and, at each end of sai member, an outwardly bent U-sha ed strap loop and a reversely curved strap oth of which connect said top and bottom'portions and are mtearts of them, the outwardly bent strap oops on every link being lon 'tudiy nally aligned and in contact ywith t e reversely curved straps on the conti ous links, and pintle ins which-go throug the eyes formed by t e overlapplmg outwardly bent strap loop on adjacent nka 8. A track lt comprisin apluralty of 1 pivoted together links eac vcomprising a shoe and two fiat cup-shaped track members A which are secured upon said shoe with their closed ends in substantial contact along the longitudinal central line of said shoe each of said track members having substantially parallel and horizontal top vand bottom portions and at each end of said member an outwardlybent U-shaped strap loop and-a reversely curved strap bothof which connect said top 'and bottom portions and are integral parts of them, the U-shaped outwardly bent strap loops on every other link being adjacent the open outer edges of the track members thereof and the outwardlyl bent U-shaped strap loops on the intermediate links being located adjacent the closed innerends of said track members, and the width of the outwardly bent strap loops on each link being substantially the same as the reversely curved straps on the` contiguous links.

9. A track belt comprising a pluralityof pivoted together links, eac comprising a shoe, and two flat cup-shaped track members which are secured upon said shoe with their` closed ends in substantial contact along the longitudinal central line of said shoe each of said track members having substantially lcurved strap on thenext link, and pintle pins which go through the eyes formed by the overlapping outwardly bent strap loops on contiguous links, said track members being formed with narrow slots through them to permit the passage of sprocket teeth into engagement with said pintle pins.

10. A- track belt unit comprising two cup shaped members which are c osed at one side vand open at the other side and are secured to ether with their closed ends in contact, sald members having substantially horizontal top and bottom rtions which abut each other, the horizonte to a continuous longitu surface.

In testimony whereof, I hereunto ax my i. I

signature.

MATHEW r..V MORGAN.

portions providing al roller bearing 

